We have seen all three of your posts today. Before we can answer your request we will need to know more about what help you need?
Do you know how do download and install CHDK on an SD card that you can use in your camera?
Do you understand how to load and run a script ?
Do you need help finding a good timelapse script?
Do you need information about how to configure an external powersupply to run your camera for long periods.
You might start by reading the user manual :
CHDK User ManualOr looking here for basic setup instructions :
Prepare your SD card.Many other useful links can be found here :
CHDK Links
